varchar variable getting truncated to 256 chars!

DECLARE @sql varchar(2000)

this is a delcaration of a variable in sql server procedure. along with some query some more values are getting added to this variable through a loop. But this is getting truncated to 256 chars [and not generating any errors]
Any one knows why it is getting truncated?

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2 things:
* do you mean that the output in Query Analyser get's truncated?
-> see in the options of query analyser, you have an parameter saying max caracters per column, which is 256 by default. You could increase this value to see more...

* is the compatibility of the database eventually set to version 6?
-> for checking: exec sp_dbcmptlevel 'dbname'
-> for changing: exec sp_dbcmptlevel 'dbname', 7 (or 8 if you have sql 2000)

Then the problem is probably the code, can you post it (at least those parts that are relevant to assigning the values to the variable).

* do you mean that the output in Query Analyser get's truncated?
> No its being executed inside the procedure and the variable is also declared inside sql procedure.
Ok, but where do you SEE that the value is truncted to 256?

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